PHOTOS: Fatal explosion in Russian subway

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Tuesday, April 4, 2017
A picture shows the damaged train carriage at Technological Institute metro station in Saint Petersburg on April 3, 2017.
Locals near Tekhnologichesky Institut station of the St Petersburg metro in the aftermath of a blast that hit a train carriage between stations.
Traffic police officers are shown near crowds at Moskovsky Prospekt Street near the entrance to Tekhnologichesky Institut station of the St Petersburg metro.
A woman uses a phone at the entrance to Tekhnologichesky Institut station of the St Petersburg metro in the aftermath of an explosion which occurred in a train on Monday.
People use phones at the entrance to Tekhnologichesky Institut station of the St Petersburg metro in the aftermath of an explosion on Monday.
A subway train hit by a explosion stays at the Tekhnologichesky Institut subway station in St.Petersburg, Russia, Monday, April 3, 2017.
An emergency service helicopter and a police car near Tekhnologichesky Institut station of the St Petersburg metro in the aftermath of an explosion which occurred in a train.
Emergency services personnel walk at the entrance to Technological Institute metro station in Saint Petersburg on April 3, 2017.
In this grab taken from AP video, Russian police officer, left, and people walk past the damaged train at the Tekhnologichesky Institut subway station in St.Petersburg, Russia.
A screenshot from an Instagram video shows the scene in St. Petersburg.
Firefighters and ambulances at the entrance to Sennaya Ploshchad station of the St Petersburg metro in the aftermath of an explosion which occurred in a train.
A photo taken by an Instagram user shows the scene inside a smoke-filled Russian subway station.
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PHOTOS: Fatal explosion in Russian subwayA picture shows the damaged train carriage at Technological Institute metro station in Saint Petersburg on April 3, 2017.
STR/AFP/Getty Images

An explosion in a St. Petersburg subway on Monday has killed at least 14 people and injured more than 40 others.

Russia's health minister revised the death toll on Tuesday from 11 to 14, saying that 49 people were still in the hospital.

The explosion took place between subway stations near Sennaya Square.

This is a developing story. Please check back for updates.